Hilitchi 4Pcs USB Nano V3.0 ATmega328 CH340G 5V 16M Micro-controller board and nRF24L01+ 2.4GHz Wireless Transceiver Arduino Compatible (Include: Dupont Jumper Wires x 20PCS) Product name: NRF24L01 + Wireless Module and V3.0 ATmega328 CH340G 5V 16M Micro-controller Board Kit Package Quantity: 2 x NRF24L01 + Wireless Module, 2 x Nano V3.0 ATmega328 Micro-controller board Detailed functions and parameters in the "Product Description" Arduino IDE Download: http://arduino.cc/en/Main/Software USB chip driver: http://wch.cn/downloads.php?name=pro&proid=65